Terrain UI: Why is there 4 buttons and 5 more options hidden in a select box under the first button?

I honestly thought my terrain was broken after upgrading to the beta and I googled and looked everywhere until I almost accidentally clicked the "Create Neighbor Terrains" select box and found all the missing options hiding there.

Surely there's plenty of room up there for a dedicated button for each option? And "Create Neighbor Terrains" seems like an option you need once in a blue moon compared to the other options.

Not to mention having them all as separate buttons saves you a couple of clicks every time you need to access them.

Edit: "tool" is a more descriptive word than "option" for what I'm talking about here. TL;DR: I suggest giving each tool a separate button and removing the select box.